@Article{CavalcantiBarAlvOsmCoe:2021:TePaSo,
               author = "Cavalcanti, Iracema Fonseca de Albuquerque and Barreto, Naurinete 
                         de Jesus da Costa and Alvarez, Mariano S. and Osman, Marisol and 
                         Coelho, Caio Augusto dos Santos",
          affiliation = "{Instituto Nacional de Pesquisas Espaciais (INPE)} and {Instituto 
                         Nacional de Pesquisas Espaciais (INPE)} and {Universidad de Buenos 
                         Aires} and {Universidad de Buenos Aires} and {Instituto Nacional 
                         de Pesquisas Espaciais (INPE)}",
                title = "Teleconnection patterns in the Southern Hemisphere represented by 
                         ECMWF and NCEP S2S project models and influences on South America 
                         precipitation",
              journal = "Meteorological Applications",
                 year = "2021",
               volume = "28",
               number = "4",
                pages = "e2011",
                month = "Jul/Aug.",
             keywords = "precipitation anomaly, PSA, S2S, SAM, South America, sub-seasonal 
                         predictions, teleconnections.",
             abstract = "Precipitation predictions in the sub-seasonal timescale are very 
                         important for several sectors such as agriculture and energy in 
                         regions of South America that are very much affected by 
                         precipitation extremes, both excess and lack of rain. The aim of 
                         the present study is to investigate the ability of two S2S project 
                         models (ECMWF and NCEP) to detect the Southern Hemisphere 
                         teleconnections in model hindcasts and the associated anomalous 
                         precipitation over South America. The period of analyses is 
                         19992010 for the austral summer season (DecemberJanuaryFebruary). 
                         Both models represented adequately the Southern Annular Mode (SAM) 
                         pattern in predictions up to 4 weeks ahead and the Pacific South 
                         America (PSA) pattern up to 3 weeks. Atmospheric variables of 
                         observed extreme cases of SAM were well predicted by the two 
                         models, 2 and 3 weeks in advance. The models predicted well 
                         atmospheric variables in observed extreme cases of PSA, 2 weeks in 
                         advance and with less intensity in the third week. Precipitation 
                         anomaly signals associated with these modes were well predicted 2 
                         weeks in advance, although with different intensities. The good 
                         ability of the models hindcast in predicting teleconnection 
                         patterns and precipitation anomalies over South America provides 
                         more confidence to use predictions at sub-seasonal timescale.",
                  doi = "10.1002/met.2011",
                  url = "http://dx.doi.org/10.1002/met.2011",
                 issn = "1350-4827",
           targetfile = "cavalcanti_2021.pdf",
        urlaccessdate = "05 maio 2024"
}